Bug#676522: gdm3: scrollbar disappeared from login chooser

[Massimo Manghi]

Package: gdm3
Version: 3.0.4-4
Severity: important


under normal usage in a system with some 25 users gdm3 started to hide
the scrollbar of the login chooser, making impossible to login unless 
the user is already in the visible view. Nothing effective could 
be done: arrow keys move the selection up and down, but selection 
eventually moves outside the view leaving the user with no clue about
the login selected at a time.


  -- Massimo Manghi

-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-2-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages gdm3 depends on:
ii  accountsservice                             0.6.15-4
ii  adduser                                     3.113+nmu2
ii  dconf-gsettings-backend                     0.12.1-1
ii  debconf [debconf-2.0]                       1.5.43
ii  gconf2                                      3.2.5-1
ii  gnome-session [x-session-manager]           3.4.2-1
ii  gnome-session-bin                           3.4.2-1
ii  gnome-session-fallback [x-session-manager]  3.4.2-1
ii  gnome-terminal [x-terminal-emulator]        3.4.1.1-1
ii  gsettings-desktop-schemas                   3.4.2-1
ii  libaccountsservice0                         0.6.15-4
ii  libatk1.0-0                                 2.4.0-2
ii  libattr1                                    1:2.4.46-7
ii  libaudit0                                   1:1.7.18-1.1
ii  libc6                                       2.13-32
ii  libcairo-gobject2                           1.12.2-1
ii  libcairo2                                   1.12.2-1
ii  libcanberra-gtk3-0                          0.28-4
ii  libcanberra0                                0.28-4
ii  libdbus-1-3                                 1.5.12-1
ii  libdbus-glib-1-2                            0.98-1
ii  libfontconfig1                              2.9.0-5
ii  libfreetype6                                2.4.9-1
ii  libgconf2-4                                 3.2.5-1
ii  libgdk-pixbuf2.0-0                          2.26.1-1
ii  libglib2.0-0                                2.32.3-1
ii  libglib2.0-bin                              2.32.3-1
ii  libgtk-3-0                                  3.4.2-1
ii  libpam-modules                              1.1.3-7.1
ii  libpam-runtime                              1.1.3-7.1
ii  libpam0g                                    1.1.3-7.1
ii  libpango1.0-0                               1.30.0-1
ii  librsvg2-common                             2.36.1-1
ii  libselinux1                                 2.1.9-2
ii  libupower-glib1                             0.9.16-2
ii  libwrap0                                    7.6.q-23
ii  libx11-6                                    2:1.4.99.901-2
ii  libxau6                                     1:1.0.7-1
ii  libxdmcp6                                   1:1.1.1-1
ii  libxklavier16                               5.2.1-1
ii  libxrandr2                                  2:1.3.2-2
ii  lsb-base                                    4.1+Debian4
ii  metacity [x-window-manager]                 1:2.34.1-2
ii  policykit-1-gnome                           0.105-2
ii  twm [x-window-manager]                      1:1.0.6-1
ii  upower                                      0.9.16-2
ii  xterm [x-terminal-emulator]                 278-1

Versions of packages gdm3 recommends:
ii  at-spi                 1.32.0-1
ii  desktop-base           6.0.7
ii  gnome-icon-theme       3.4.0-2
ii  gnome-power-manager    3.4.0-2
ii  gnome-settings-daemon  3.2.2-3
ii  x11-xkb-utils          7.7~1
ii  xserver-xephyr         2:1.12.1.902-1
ii  xserver-xorg           1:7.6+13
ii  zenity                 3.4.0-2

Versions of packages gdm3 suggests:
ii  gnome-mag             1:0.16.3-1
ii  gnome-orca            <none>
ii  gok                   2.30.0-1
ii  libpam-gnome-keyring  3.4.1-4
ii  metacity              1:2.34.1-2

-- debconf information:
* shared/default-x-display-manager: gdm3
  gdm3/daemon_name: /usr/sbin/gdm3